mei 052013
 
The Birth of a Black Hole Not as Boring as Thought

  A new kind of cosmic flash may reveal something never seen before: the birth of a black hole.   When a massive star exhausts its fuel, it collapses under its own gravity and produces a black hole, an object so dense that not even light can escape its gravitational grip. According to a new [continue reading]

sep 282012
 
'Flashy' Secrets of Merging Black Holes Uncovered

  According to Einstein, whenever massive objects interact, they produce gravitational waves — distortions in the very fabric of space and time — that ripple outward across the Universe at the speed of light. While astronomers have found indirect evidence of these disturbances, the waves have so far eluded direct detection. Ground-based observatories designed to [continue reading]

jul 192012
 
Daytime Lightning on Saturn Spotted

  Saturn was playing the lightning storm blues. NASA’s Cassini spacecraft has captured images of last year’s storm on Saturn, the largest storm seen up-close at the planet, with bluish spots in the middle of swirling clouds. Those bluish spots indicate flashes of lightning and mark the first time scientists have detected lightning in visible [continue reading]